The agency said the outbreak was caused by tainted cucumbers produced in Baja California, Mexico, and distributed by Andrew and Williamson Fresh Produce in San Diego. Company officials said they have voluntarily recalled all of its Limited Edition brand label cucumbers sold between Aug. 1 and Sept. 3.

About 1.2 million people annually become ill from salmonella, with about 450 cases resulting in death, the CDC reports. Symptoms may include headache, stomach pain, diarrhea, nausea and sometimes vomiting within 72 hours of ingesting a contaminated food or drink, Arizona health officials said.